摘要:
A flexible traction organ that can be wound and unwound, in particular for passenger and/or goods lifts, said organ comprising at least one stranded cable consisting of a tensile resistant material. The core strand of each stranded cable is surrounded by a flexible thermoplastic plastic layer. A production line for embedding several stranded cables in a flexible thermoplastic layer comprises a respective reel for unwinding the stranded cable, a device for accurately aligning the stranded cable, a heating element for pre-heating the stranded cable, at least one extruder for co-extruding the stranded cable in a flexible plastic sheathing, a cooling vat, a reel storage unit, a cutting unit and a reserve reel. The extruder, a wire guide and at least one die can be adjusted individually, conjointly and in relation to one another on a plane (P) that runs at an angle to the cable plane (E). The unwound stranded cables are degreased and/or pre-treated to improve the adhesion of the plastic sheathing, and pre-heated to a temperature of approximately ±20° C. in relation to the melting temperature of the flexible, thermoplastic plastic that surrounds the core strand and are sheathed with liquefied plastic in the extruder.
摘要:
A one-time password (OTP) generator in combination with a conventional credit/debit card comprising a card having a magnetic bar stripe, raised imprint card numbers and name, expiration date and four digit code as are known in the art is provided. Full smart card functionality may also be provided. The card also includes a microprocessor and software, dedicated chip or a memory chip for generating the OTP. A visual and/or audio display is provided on the card to output the OTP to the user. The end user inputs the OTP to access the secured system. The credit/debit card functionality may be used apart from the OTP generator functionality.
摘要:
A multi-element thermocouple circuit includes at least two temperature measuring junctions. A first temperature measuring junction is formed by first and second thermoelements, each of the first and second thermoelements being formed of a noble metal or a noble metal alloy. The second temperature measuring junction, which connects to the distal end of the first thermoelement, is formed by third and fourth thermoelements, neither of which is formed from a noble metal or a noble alloy. A fifth thermoelement connects to the distal end of the second thermoelement and is formed of the same material as the fourth thermoelement. During operation, the distal ends of the third and fourth thermoelements define therebetween a first voltage difference corresponding to a temperature at the second temperature measuring junction, while the distal ends of the fourth and fifth thermoelements define a second voltage difference from which a temperature at the first temperature measuring junction may be obtained.
摘要:
A process for imparting controlled oxygen precipitation behavior to a single crystal silicon wafer. Specifically, prior to formation of the oxygen precipitates, the wafer bulk comprises dopant stabilized oxygen precipitate nucleation centers. The dopant is selected from a group consisting of nitrogen and carbon, and the concentration of the dopant is sufficient to allow the oxygen precipitate nucleation centers to withstand thermal processing, such as an epitaxial deposition process, while maintaining the ability to dissolve any grown-in nucleation centers.
摘要:
The present invention provides metal powder compositions for pressed powder metallurgy and methods of forming metal parts using the metal powder compositions. In each embodiment of the invention, the outer surface of primary metal particles in the metal powder composition is chemically cleaned to remove oxides in situ, which provides ideal conditions for achieving near full density metal parts when the metal powder compositions are sintered.
摘要:
An elevator load bearing assembly (30) includes a jacket (34) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members (32) are at least partially surrounded by a first portion (36) comprising a first polymer composition. A second portion (38) establishes at least one exterior surface (40) of the jacket (34) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket (34). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket (34).
摘要:
An ion engine which produces thrust by charging a propellant vapor in an electric field and then reversing the polarity of the electric field. The electric field forces the charged nuclei close to the unenergized electrode. When the electrode is energized as a positive electrical charge, the nuclei repel and create thrust in the opposite direction.
摘要:
A multi-element thermocouple circuit includes at least two temperature measuring junctions. A first temperature measuring junction is formed by first and second thermoelements, each of the first and second thermoelements being formed of a noble metal or a noble metal alloy. The second temperature measuring junction, which connects to the distal end of the first thermoelement, is formed by third and fourth thermoelements, neither of which is formed from a noble metal or a noble alloy. A fifth thermoelement connects to the distal end of the second thermoelement and is formed of the same material as the fourth thermoelement. During operation, the distal ends of the third and fourth thermoelements define therebetween a first voltage difference corresponding to a temperature at the second temperature measuring junction, while the distal ends of the fourth and fifth thermoelements define a second voltage difference from which a temperature at the first temperature measuring junction may be obtained.
摘要:
A platinum resistance thermometer has an outer housing with a bore that receives a temperature sensor assembly including a mandrel having a sensing section with a platinum wire wound thereon and supported in the bore with a non-cohesive powder material that will distribute stresses caused by differential thermal expansion between the housing and the temperature sensor assembly. A second portion of the mandrel is supported in the bore with a rigid epoxy to mechanically support the sensor assembly with the sensing section cantilevered from the rigid epoxy.
摘要:
The present invention is directed to methods and apparatus that use electrostatic and/or electromagnetic fields to enhance the process of spray forming preforms or powders. The present invention also describes methods and apparatus for atomization and heat transfer with non-equilibrium plasmas. The present invention is also directed to articles, particularly for use in gas turbine engines, produced by the methods of the invention.